Feast of Ardwahist

Ardwahist, Feast of

April, August, September; third day of Ardwahist, the second Zoroastrian month

The Feast of Ardwahist is considered a "sacred name day" in the Zoroastrian religion because both the day and the month share the name of the same yazata or spiritual being—in this case Ardwahist, who stands for truth and righteousness and presides over fire and energy. Ardwahist is represented by the ceremonial fire that plays such a central role in Zoroastrian worship, and that burns continually in most Zoroastrian temples.
The Zoroastrian calendar has 12 months of 30 days each, plus five extra days at the end of the year. Because of discrepancies in the calendars used by widely separated Zoroastrian communities around the world, there are now three different calendars in use, and the 3rd of Ardwahist can fall either in April, August, or September.
Followers of the Zoroastrian religion, which was founded by the prophet Zoroaster (also known as Zarathushtra, who is believed to have lived around 1200 b.c.e.), today live primarily in Iran and northwestern India, although smaller communities exist in Pakistan, Sri Lanka, Canada, the U.S., England, and Australia.

SOURCES:
RelHolCal-2004, p. 66